Calling the DRIRE was quite fruitless. Close, but no cigar. So I tried calling the Lyon Police again, but it seems that the person I talked to only two days ago must have been from a parallel universe; suddenly nobody knows anything about sound tests! I talked to at least three persons, and all of them seemed to be unable to get past asking me why I needed the paper. I tried my best to explain, but obviously I was not coming through. At the umptieth "Je ne compris pas" (I don't understand), I asked my French office colleague to please explain my situation. After talking to four different persons, she gets a number which, according to the person somewhere else, might be the right one. I don't have the energy to cross my fingers.